Naming of auto configured Unconfigured Objects

[nevillestyles]

Good afternoon,

We have enabled the Auto Configure settings for Unconfigured Objects:



We've done this so that new services are created should we receive SNMP traps from a new device, or if we receive an SNMP trap with a new service name (see https://support.nagios.com/forum/viewto ... 16&t=63240)

When a new service is created using this method, the name of the host it is associated with is set to its IP address:



Is there a way to change the auto configuration of the Unconfigured Objects so that new hosts are created with their DNS names (or names resolved from the local hosts file)?

Regards,
Neville

[ssax]

It should do it by default, check this setting in /etc/snmp/snmptt.ini:

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dns_enable = 1

Does nslookup work from the XI system that?

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nslookup 10.29.74.76

Please run this command as root and attach (or PM) the resulting /tmp/SNMPFILES.tar.gz file:

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tar czvf /tmp/SNMPFILES.tar.gz /etc/snmp

[nevillestyles]

Thanks for the response.

I can confirm dns_enable is set to 1.

nslookup returns a result, plus the host is in /etc/hosts:

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$ nslookup 10.29.74.76
76.74.29.10.in-addr.arpa        name = pcen-td-01.<redacted>.

$ grep 10.29.74.76 /etc/hosts
10.29.74.76     pcen-TD-01

I'll PM you the file requested in the next few minutes.

Many thanks,
Neville

[ssax]

Looking at your traps defined in Admin > SNMP Trap Interface > Defined Traps I see most are using the Host Name settings of $aR which is:

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$aR, $ar - IP address

Edit one of the traps and change it to use $r for the Host Name settings, then send a test trap and see if it shows up in Admin > Unconfigured Objects with the DNS name now.

Taken from here:

http://www.snmptt.org/docs/snmptt.shtml ... ONF-FORMAT

[nevillestyles]

Thank you very much, that worked perfectly. I'm not sure how I missed that!